Sash pulley



Mar. 3. 1925'.- 1,528,115

M. M. LARSEN' SASH PULLEY Filed sebt. 25, 192:5

i Patented Mar. 3, 1925i.

Yu-Niva D.

Mans M. Lim-salmon Cowon. vafuaromvnl.

i. sAsH BULLE?.

Application filed `Septem-ber 25,4 1923.' Seriallo.66"157'02.

To all 107mm t may concern/rl Y YBe it known that I, MADs M. LARSEN, acitizen of the United States, residing at Colton, California, -in thecounty of San Bernardino and State of California, have invented new` anduseful Improvements in Sash Pulleys, of which the'following is aspecification. s This invention relates to builders hardware and moreparticularly to sash pulleys.

It is one of the broad objects of the present invention to provide asash pulley device constructed as a unitary structure which is adaptedto be readily inserted into a primary part, such as a window casingstile, with a minimum amount of labor and by a simple operation ofcutting the sashtoreceive the pulley. Further, an object is to provide asash pulley device which'need not necessarily be fastened lby anyextraneous means to the part in which it is mounted. Another Objectis toprovide a sash pulley which is of such construction that the liabilityof the sash cord from jumping is practically eliminated, and further, anobject is to provide a sash pulley device having means to facilitate theintroduction of the sash cord.

Other objects and advantages will be made manifest in the followingspecification of an embodiment of the invention illustrated in theaccompanying drawings, wher-ein:

- Figure l is a perspective of the detached device and showing a pulleycord rove therein.

Fig. 2 is a horizontal section and plan showing the device installed.

Fig. 3 is a longitudinal section the parts of the device.

Fig. 4 is a section on line 4 4 of Figure 2.

The form of the device as shown includes a tubular shell or casing 2which is here shown as substantially cylindrical in form, though it isnot necessarily limited to such form. One end of the shell 2 is providedwith an outwardly extending shoulder or stop means in the form ofaflange 2a. Within the shell 2 are provided transversely extending shaftsor axles 3, which may be suitably mounted in the yopposite side portionsof the shell as clearly shown in Figure 4, and if desired may be rigidlyfixed as by soldering or welding, indicated at 4, and thus preventingendwise movement of the axles 3. Mounted on each axle is a guide rolleror pulley 5, these rollers being shown through as disposed adjacent theends of'lthe shell so as to form suitable guide means for the sash ropeR connected in the usual manner to asash weight and to a sash.

`A feature of the invention consists of means to facilitate thethreading of the sash rope R through the shell 2 and across comvmonsides jof the spaced guide rollers 5.

Such means is indicated as a transversely extending guide portion 6which, for econoiny of construction and for simplicity, may be formed bypunching down and into the shell 3 a portion 'of the shell between theaxles 3-3. Thus the transverse part 6 prevents the end of the rope Rbeing pushed through the shell from passing down between the two pulleysand thus this part 6 guides the rope through the shell.

When installing the present sash pulley device it is only necessary todrill a round hole with an auger in the window frame part f F of ka sizesubstantially corresponding to the size of the given shell 2, and thislatter is then driven into the hole H in the frame and thus retainedfirmly in place by pressure of the surfaces of the; shell and hole.Means are provided for preventing the rotation of the shelland is shownas consisting of a longitudinally extending rib or fin 7 on the outsideof the shell. This iin preferably has aninclined edge 7a so that it willreadily .cut into the wood of the fra-me when driven 1n. f

Obviously, if desired, a nail, screw or other retaining means 10 may bedriven through the stop shoulder or flange 2 into the window frame.

From the above it will be seen that I have provided a sash pulley deviceof utmost simplicity and of substantial formation and few parts, andhave provided a device which may be quickly mounted in a hole which maybe cut by a rapid and very inexpensive method.

Further embodiments, modifications and variations may be resorted towithin the principle of the invention.

What is claimed is:

1. A sash pulley device comprising a shell 2. A, sash pulley devicecomprising` a shell having mounted in its interior a set ci guidepulleys :tor a sash cord, and a guide extending transversely across theinterior of the shell and for the purpose of preventing the sash ropebeing threaded through theshell from passing` between the said pulleys,said guide consisting of an inwardly struck portion of the shell Wall.

3. A sash pulley device comprisingy a shell having mounted upon theinterior thereoil a set of guide pulleys for a sash cord, and a guidefor preventing the sash cord being threaded through the shell frompassing` between said pulleys, said guide consisting of a portion of thetop of the shell being pressed downwardly between said pulleys.

In testimony whereof I have signed my name to this speciication.

MADS M. LARSEN.

